if a bar of copper is brought near a magnet, the copper bar will be
not magnetic, nonferrous, not attracted to the magnet, etc
If a bar of copper is brought near a magnet, the copper bar will not be attracted to the magnet. This is because copper is a nonmagnetic material, meaning it does not have magnetic properties like iron or steel. The magnetic force from the magnet will not induce magnetism in the copper bar, so it will simply remain unaffected and not be attracted to the magnet.
To understand why copper is not magnetic, it helps to know that magnetism arises from the alignment of atomic magnetic moments in a material. In magnetic materials like iron, nickel, and cobalt, the atomic magnetic moments naturally align and generate a magnetic field. However, in nonmagnetic materials like copper, the atomic magnetic moments do not align in a way that produces a noticeable magnetic effect.
If you were to test the magnetic properties of different materials, you could use a magnet and observe their behavior. By bringing the magnet close to the material and seeing if it attracts or repels, you can determine whether the material is magnetic or not. In the case of copper, it would not be attracted to the magnet, confirming its nonmagnetic nature.